Hammer & Hand builds Accessory Dwelling Units (ADUs) in Portland & Seattle. From garage conversions to detached cottages, they guide homeowners through zoning, permits, design, and costs for rental income or multigenerational living.
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Stellar Construction & Remodeling builds ADUs in Damascus, OR, managing permits, design, and construction for rental units, guest houses, or in-law suites. They handle detached and attached configurations, ensuring full code compliance and cer... read more
Adair Homes offers custom ADU builder solutions, including stand-alone and attached accessory dwelling units. With a six-step building process, financing via Basis Home Loans, and expert guidance, Adair simplifies new home and ADU construction.read more
Roost Homes LLC is a Portland-based contractor specializing in ADU design and build, home additions, and remodels. They offer energy-efficient detached ADUs, garage conversions, and full renovations tailored to client needs across the Portland met... read more
ADU builder Amplified Renovations serves Portland, OR and Vancouver, WA, specializing in accessory dwelling units including backyard cottages, garage conversions, and basement ADUs. Costs range from $150K–$350K+, with rental income potential of ... read more
SQFT Studios, founded in 2015 by Architect Eli Green, is a Portland-based ADU builder specializing in detached ADUs, garage conversions, backyard cottages, and guest suites, with 10+ years of experience.
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Straight Line Design and Remodeling LLC offers ADU design and build services in Portland, Oregon. Serving Beaverton, Tigard, Lake Oswego & Hillsboro since 2010, they build backyard cottages for rental income, multigenerational living & add... read more
Jack Barnes Architect, PC is a licensed architectural firm in Portland, OR, specializing in residential design including ADUs, garage conversions, JADUs, and backyard cottages. Located on SE Belmont Street, they help clients navigate permitting an... read more
Lamont Bros. Design & Construction is a Portland, Oregon ADU contractor offering full design-build services. They help homeowners plan and build accessory dwelling units, including detached ADUs, garage conversions, and JADUs for rental income... read more
Collins ADU Builders is a licensed Portland ADU contractor offering detached ADUs, garage conversions, JADUs, home additions & design services. Free consultations, transparent pricing, full permit coordination included.
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Aim High ADU Solutions is a trusted ADU contractor in Hillsboro, OR, specializing in accessory dwelling unit construction. They offer expert planning, quality craftsmanship, and client-focused service to help homeowners expand their living space e... read more
Cronen Building Co. specializes in accessory dwelling units (ADUs), including granny flats, garage conversions, and backyard cottages. They guide homeowners through design and construction, delivering quality ADUs for rental income, in-law suites,... read more
Neil Kelly Portland offers full ADU design and build services, including detached units, garage conversions, and basement conversions. They handle zoning, permits, and custom design for functional, energy-efficient accessory dwelling units.
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JRW Construction LLC offers full-service ADU construction, managing permits, inspections, and trade scheduling. They build detached ADUs, in-law suites, granny flats, garage conversions, and JADUs with quality finishes and energy-efficient systems... read more
VDC Builders Inc specializes in ADU design & construction, including backyard cottages, in-law suites & rental units. Services cover flooring, kitchen & bathroom remodels, custom home building & cabinet refinishing.
read moreOregon City holds a unique distinction as the first incorporated city west of the Rocky Mountains, and its rich historical character shapes how development — including Accessory Dwelling Units (ADUs) — is approached. Nestled along the Willamette River and home to the famous Municipal Elevator, Oregon City blends historic preservation requirements with modern housing needs. If you're looking for experienced ADU contractors in Oregon City, Oregon, understanding the local landscape is essential before breaking ground.
Oregon City falls under Clackamas County jurisdiction for some areas, but the city itself has its own planning and zoning codes. ADU development in Oregon City must comply with the Oregon City Development Code, which outlines specific rules for both attached and detached ADUs. Key regulations include:
Working with a licensed ADU contractor familiar with Oregon City's permitting process can save you significant time and money. The city's planning department requires building permits, and in some cases, design review approval before construction begins. A knowledgeable local contractor will understand how to navigate these steps efficiently, including coordinating with the Oregon City Public Works Department for utility connections and site development requirements.
Oregon City's varied topography — including hillside lots with dramatic elevation changes — influences the type of ADU that works best for a given property. Skilled ADU builders in Oregon City commonly construct:
With Oregon's statewide push to address housing shortages, ADUs in Oregon City represent a smart investment. They can generate rental income, provide multigenerational living options, or increase overall property value. Oregon state law (HB 2001) has also expanded ADU allowances statewide, giving homeowners more flexibility than ever. Partnering with a reputable, licensed and insured ADU contractor in Oregon City, OR ensures your project meets all local codes while maximizing your investment.